Purpose: Examine the use of systemic phosphodiesterase inhibition (sildenafil) to clear central serous chorioretinopathy (CSCR). Observations: In a long-standing CSCR patient. sildenafil produced a rapid resolution. When discontinued (dechallenge) the CSCR returned. https://www.roneverhart.com/HP-Victus-15-FA0031DX-15-6-FHD-IPS-Gaming-Laptop-Intel-Core-i5-12450H-3-3-GHz-GeForce-GTX-1650-8GB-DDR4-RAM-512GB-SSD/